diff --git a/src/funcs/handle_profession.go b/src/funcs/handle_profession.go
new file mode 100644
index 0000000..831e6b2
--- /dev/null
+++ b/src/funcs/handle_profession.go
@@ -0,0 +1,133 @@
+package funcs
+
+import (
+	"fmt"
+)
+
+// 職業を判定する関数
+func judgeProfession(rank string, topLanguages []string, percentages []float64) string {
+	// 職業のルートと言語を定義
+	magicRoute := map[string]string{
+		"TypeScript": "攻撃魔法", "R": "ネクロマンサー", "Flutter": "防御魔法",
+		"Go": "召喚士", "Scala": "精霊魔法", "Rust": "回復術師",
+	}
+	outlawRoute := map[string]string{
+		"Assembly": "賞金稼ぎ", "C": "無法者", "C++": "無法者",
+		"ObjectiveC": "盗賊", "Matlab": "盗賊",
+	}
+	warriorRoute := map[string]string{
+		"C#": "ファイター", "Swift": "弓使い", "Kotlin": "弓使い",
+		"Ruby": "槍使い", "PHP": "槍使い", "HTML": "剣士", "CSS": "剣士",
+		"JavaScript": "剣士", "Java": "騎士", "Python": "士官",
+	}
+
+	// ランクに応じた共通の職業を判定
+	switch rank {
+	case "C+":
+		return "冒険者見習い"
+	case "C":
+		return "少年"
+	case "C-":
+		return "赤ちゃん"
+	}
+
+	profession := "未定義の職業" // 初期値を設定
+
+	// ランクがC+以下の場合は、基本職業をそのまま使用
+	for _, language := range topLanguages {
+		if p, ok := magicRoute[language]; ok {
+			profession = p
+			break // 最初に見つかった職業を使用
+		} else if p, ok := outlawRoute[language]; ok {
+			profession = p
+			break // 最初に見つかった職業を使用
+		} else if p, ok := warriorRoute[language]; ok {
+			profession = p
+			break // 最初に見つかった職業を使用
+		}
+	}
+
+	// 混合職のロジックを実装
+	if rank == "A-" || rank == "A" || rank == "A+" {
+		if len(topLanguages) >= 2 && len(percentages) >= 2 {
+			firstProfession := ""
+			secondProfession := ""
+			for i, language := range topLanguages[:2] { // 上位2つの言語のみを考慮
+				if _, ok := magicRoute[language]; ok {
+					if i == 0 {
+						firstProfession = "魔法"
+					} else {
+						secondProfession = "魔法"
+					}
+				} else if _, ok := outlawRoute[language]; ok {
+					if i == 0 {
+						firstProfession = "アウトロー"
+					} else {
+						secondProfession = "アウトロー"
+					}
+				} else if _, ok := warriorRoute[language]; ok {
+					if i == 0 {
+						firstProfession = "戦士"
+					} else {
+						secondProfession = "戦士"
+					}
+				}
+			}
+
+			// 混合職種の判定ロジック
+			if firstProfession != secondProfession {
+				if firstProfession == "アウトロー" && secondProfession == "戦士" {
+					profession = "バーカーサ"
+				} else if firstProfession == "戦士" && secondProfession == "アウトロー" {
+					profession = "闇騎士"
+				} else if firstProfession == "魔法" && secondProfession == "アウトロー" {
+					profession = "黒魔術師"
+				} else if firstProfession == "アウトロー" && secondProfession == "魔法" {
+					profession = "ライダー"
+				} else if firstProfession == "戦士" && secondProfession == "魔法" {
+					profession = "魔法戦士"
+				} else if firstProfession == "魔法" && secondProfession == "戦士" {
+					profession = "魔法騎士"
+				}
+			}
+		}
+	}
+
+	return getFinalProfession(profession, rank) // 最終的な職業をランクに基づいて修正
+}
+
+func getFinalProfession(profession string, rank string) string {
+	finalProfession := ""
+	switch rank {
+	case "B-":
+		finalProfession = profession + "の見習い"
+	case "B":
+		finalProfession = "初級 " + profession
+	case "B+":
+		finalProfession = "中級 " + profession
+	case "A-":
+		finalProfession = "上級 " + profession
+	case "A":
+		finalProfession = "特級 " + profession
+	case "A+":
+		finalProfession = profession + "のラスボス"
+	case "S":
+		finalProfession = "神"
+	default:
+		finalProfession = profession // ランクが指定外の場合は基本職業をそのまま使用
+	}
+	return finalProfession
+}
+
+func main() {
+	fmt.Println(judgeProfession("C+", []string{"Go"}, []float64{100}))               // 召喚士
+	fmt.Println(judgeProfession("A", []string{"Python", "Java"}, []float64{20, 20})) // 特級 士官と騎士
+	fmt.Println(judgeProfession("C", []string{}, []float64{}))                       // 少年
+	fmt.Println(judgeProfession("B-", []string{"TypeScript"}, []float64{100}))       // 攻撃魔法の見習い
+	fmt.Println(judgeProfession("B", []string{"C"}, []float64{100}))                 // 初級 無法者
+	fmt.Println(judgeProfession("B+", []string{"Java"}, []float64{100}))             // 中級 騎士
+	fmt.Println(judgeProfession("A-", []string{"Rust"}, []float64{100}))             // 上級 回復術師
+	fmt.Println(judgeProfession("A", []string{"Go"}, []float64{100}))                // 特級 召喚士
+	fmt.Println(judgeProfession("A+", []string{"Assembly"}, []float64{100}))         // 賞金稼ぎのラスボス
+	fmt.Println(judgeProfession("S", []string{"Python"}, []float64{100}))            // 神
+}