diff --git a/go.mod b/go.mod
index d5295da37f..0a134af14b 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/FloatTech/floatbox v0.0.0-20240505082030-226ec6713e14
 	github.com/FloatTech/gg v1.1.3
 	github.com/FloatTech/imgfactory v0.2.2-0.20230413152719-e101cc3606ef
-	github.com/FloatTech/rendercard v0.1.1
+	github.com/FloatTech/rendercard v0.1.2
 	github.com/FloatTech/sqlite v1.6.3
 	github.com/FloatTech/ttl v0.0.0-20240716161252-965925764562
 	github.com/FloatTech/zbpctrl v1.6.2-0.20240904160347-1317e11a15bb
diff --git a/go.sum b/go.sum
index 9ddb076866..d02a9571e0 100644
--- a/go.sum
+++ b/go.sum
@@ -9,8 +9,8 @@ github.com/FloatTech/gg v1.1.3 h1:+GlL02lTKsxJQr4WCuNwVxC1/eBZrCvypCIBtxuOFb4=
 github.com/FloatTech/gg v1.1.3/go.mod h1:/9oLP54CMfq4r+71XL26uaFTJ1uL1boAyX67680/1HE=
 github.com/FloatTech/imgfactory v0.2.2-0.20230413152719-e101cc3606ef h1:CJbK/2FRwPuZpeb6M4sWK2d7oXDnBEGhpkQuQrgc91A=
 github.com/FloatTech/imgfactory v0.2.2-0.20230413152719-e101cc3606ef/go.mod h1:el5hGpj1C1bDRxcTXYRwEivDCr40zZeJpcrLrB1fajs=
-github.com/FloatTech/rendercard v0.1.1 h1:vXz3x92bLavmNexTywdUvhft2/ipUSuo8aPRkqVdGQ8=
-github.com/FloatTech/rendercard v0.1.1/go.mod h1:Sbojcy1t3NfFz7/WicZRmR/uKFxNMYkKF8qHx69dxY0=
+github.com/FloatTech/rendercard v0.1.2 h1:W4SF9fSxv6Ava+kIUI0T1ILOjId/cgZ0huuEpMpHJbU=
+github.com/FloatTech/rendercard v0.1.2/go.mod h1:Sbojcy1t3NfFz7/WicZRmR/uKFxNMYkKF8qHx69dxY0=
 github.com/FloatTech/sqlite v1.6.3 h1:MQkqBNlkPuCoKQQgoNLuTL/2Ci3tBTFAnVYBdD0Wy4M=
 github.com/FloatTech/sqlite v1.6.3/go.mod h1:zFbHzRfB+CJ+VidfjuVbrcin3DAz283F7hF1hIeHzpY=
 github.com/FloatTech/ttl v0.0.0-20240716161252-965925764562 h1:snfw7FNFym1eNnLrQ/VCf80LiQo9C7jHgrunZDwiRcY=
diff --git a/plugin/niuniu/main.go b/plugin/niuniu/main.go
index e00c66115f..feb2d4e2d4 100644
--- a/plugin/niuniu/main.go
+++ b/plugin/niuniu/main.go
@@ -2,7 +2,9 @@
 package niuniu
 
 import (
+	"bytes"
 	"fmt"
+	"image/png"
 	"math/rand"
 	"strconv"
 	"strings"
@@ -151,7 +153,8 @@ func init() {
 	en.OnFullMatch("赎牛牛", zero.OnlyGroup, getdb).SetBlock(true).Handle(func(ctx *zero.Ctx) {
 		gid := ctx.Event.GroupID
 		uid := ctx.Event.UserID
-		last, ok := jjCount.Load(fmt.Sprintf("%d_%d", gid, uid))
+		t := fmt.Sprintf("%d_%d", gid, uid)
+		last, ok := jjCount.Load(t)
 
 		if !ok {
 			ctx.SendChain(message.Text("你还没有被厥呢"))
@@ -160,7 +163,7 @@ func init() {
 
 		if time.Since(last.TimeLimit) > time.Minute*45 {
 			ctx.SendChain(message.Text("时间已经过期了,牛牛已被收回!"))
-			jjCount.Delete(fmt.Sprintf("%d_%d", gid, uid))
+			jjCount.Delete(t)
 			return
 		}
 
@@ -174,27 +177,47 @@ func init() {
 			ctx.SendChain(message.Text("赎牛牛需要150ATRI币，快去赚钱吧"))
 			return
 		}
+		ctx.SendChain(message.Text(message.Text("赎牛牛后长度会变为:", last.Length, "cm,是否要这样做吗?【是|否】")))
+		recv, cancel := zero.NewFutureEvent("message", 999, false, zero.CheckUser(uid), zero.CheckGroup(gid), zero.RegexRule(`^(是|否)$`)).Repeat()
+		defer cancel()
+		timer := time.NewTimer(2 * time.Minute)
+		defer timer.Stop()
+		for {
+			select {
+			case <-timer.C:
+				ctx.SendChain(message.At(uid), message.Text("回答超时已自动取消"))
+				return
+			case r := <-recv:
+				answer := r.Event.Message.String()
 
-		if err := wallet.InsertWalletOf(uid, -150); err != nil {
-			ctx.SendChain(message.Text("ERROR:", err))
-			return
-		}
+				if answer == "否" {
+					ctx.SendChain(message.Text("已销毁牛牛!"))
+					jjCount.Delete(t)
+					return
+				}
 
-		niuniu, err := db.findNiuNiu(gid, uid)
-		if err != nil {
-			ctx.SendChain(message.Text("ERROR:", err))
-			return
-		}
+				if err := wallet.InsertWalletOf(uid, -150); err != nil {
+					ctx.SendChain(message.Text("ERROR:", err))
+					return
+				}
+
+				niuniu, err := db.findNiuNiu(gid, uid)
+				if err != nil {
+					ctx.SendChain(message.Text("ERROR:", err))
+					return
+				}
 
-		niuniu.Length = last.Length
+				niuniu.Length = last.Length
 
-		if err = db.insertNiuNiu(&niuniu, gid); err != nil {
-			ctx.SendChain(message.Text("ERROR:", err))
-			return
-		}
+				if err = db.insertNiuNiu(&niuniu, gid); err != nil {
+					ctx.SendChain(message.Text("ERROR:", err))
+					return
+				}
 
-		jjCount.Delete(fmt.Sprintf("%d_%d", gid, uid))
-		ctx.SendChain(message.At(uid), message.Text(fmt.Sprintf("恭喜你!成功赎回牛牛,当前长度为:%.2fcm", last.Length)))
+				jjCount.Delete(fmt.Sprintf("%d_%d", gid, uid))
+				ctx.SendChain(message.At(uid), message.Text(fmt.Sprintf("恭喜你!成功赎回牛牛,当前长度为:%.2fcm", last.Length)))
+			}
+		}
 	})
 	en.OnFullMatch("牛子长度排行", zero.OnlyGroup, getdb).SetBlock(true).Handle(func(ctx *zero.Ctx) {
 		gid := ctx.Event.GroupID
@@ -208,16 +231,27 @@ func init() {
 			ctx.SendChain(message.Text("暂时没有男孩子哦"))
 			return
 		}
-		var messages strings.Builder
-		messages.WriteString("牛子长度排行榜\n")
-		for i, user := range m.sort(true) {
-			messages.WriteString(fmt.Sprintf("第%d名  id:%s  长度:%.2fcm\n", i+1,
-				ctx.CardOrNickName(user.UID), user.Length))
+		m.sort(true)
+		var allUsers []drawUserRanking
+		for _, info := range m {
+			allUsers = append(allUsers, drawUserRanking{
+				Name: ctx.CardOrNickName(info.UID),
+				User: info,
+			})
 		}
-		msg := ctxext.FakeSenderForwardNode(ctx, message.Text(&messages))
-		if id := ctx.Send(message.Message{msg}).ID(); id == 0 {
-			ctx.Send(message.Text("发送排行失败"))
+		ranking, err := drawRanking(allUsers, "牛牛长度排行")
+		if err != nil {
+			ctx.SendChain(message.Text("ERROR:", err))
+			return
 		}
+		var buf bytes.Buffer
+		err = png.Encode(&buf, ranking)
+		if err != nil {
+			ctx.SendChain(message.Text("ERROR:", err))
+			return
+		}
+		ctx.SendChain(message.ImageBytes(buf.Bytes()))
+
 	})
 	en.OnFullMatch("牛子深度排行", zero.OnlyGroup, getdb).SetBlock(true).Handle(func(ctx *zero.Ctx) {
 		gid := ctx.Event.GroupID
@@ -231,16 +265,26 @@ func init() {
 			ctx.SendChain(message.Text("暂时没有女孩子哦"))
 			return
 		}
-		var messages strings.Builder
-		messages.WriteString("牛牛深度排行榜\n")
-		for i, user := range m.sort(false) {
-			messages.WriteString(fmt.Sprintf("第%d名  id:%s  长度:%.2fcm\n", i+1,
-				ctx.CardOrNickName(user.UID), user.Length))
+		m.sort(false)
+		var allUsers []drawUserRanking
+		for _, info := range m {
+			allUsers = append(allUsers, drawUserRanking{
+				Name: ctx.CardOrNickName(info.UID),
+				User: info,
+			})
+		}
+		ranking, err := drawRanking(allUsers, "牛牛深度排行")
+		if err != nil {
+			ctx.SendChain(message.Text("ERROR:", err))
+			return
 		}
-		msg := ctxext.FakeSenderForwardNode(ctx, message.Text(&messages))
-		if id := ctx.Send(message.Message{msg}).ID(); id == 0 {
-			ctx.Send(message.Text("发送排行失败"))
+		var buf bytes.Buffer
+		err = png.Encode(&buf, ranking)
+		if err != nil {
+			ctx.SendChain(message.Text("ERROR:", err))
+			return
 		}
+		ctx.SendChain(message.ImageBytes(buf.Bytes()))
 	})
 	en.OnFullMatch("查看我的牛牛", getdb, zero.OnlyGroup).SetBlock(true).Handle(func(ctx *zero.Ctx) {
 		uid := ctx.Event.UserID
diff --git a/plugin/niuniu/model.go b/plugin/niuniu/model.go
index 9d1ce95e8a..e4c85be9db 100644
--- a/plugin/niuniu/model.go
+++ b/plugin/niuniu/model.go
@@ -295,7 +295,7 @@ func (m users) negative() users {
 	return m1
 }
 
-func (m users) sort(isDesc bool) users {
+func (m users) sort(isDesc bool) {
 	t := func(i, j int) bool {
 		return m[i].Length < m[j].Length
 	}
@@ -305,12 +305,12 @@ func (m users) sort(isDesc bool) users {
 		}
 	}
 	sort.Slice(m, t)
-	return m
 }
 
 func (m users) ranking(niuniu float64, uid int64) int {
 	result := niuniu > 0
-	for i, user := range m.sort(result) {
+	m.sort(result)
+	for i, user := range m {
 		if user.UID == uid {
 			return i + 1
 		}
@@ -328,7 +328,6 @@ func (db *model) createGIDTable(gid int64) error {
 	return db.sql.Create(strconv.FormatInt(gid, 10), &userInfo{})
 }
 
-// findNiuNiu 返回一个用户的牛牛信息
 func (db *model) findNiuNiu(gid, uid int64) (userInfo, error) {
 	db.RLock()
 	defer db.RUnlock()
@@ -337,7 +336,6 @@ func (db *model) findNiuNiu(gid, uid int64) (userInfo, error) {
 	return u, err
 }
 
-// insertNiuNiu 更新一个用户的牛牛信息
 func (db *model) insertNiuNiu(u *userInfo, gid int64) error {
 	db.Lock()
 	defer db.Unlock()