Sanzu Haruchiyo.

Everyone is afraid of Manjiro Sano, but in reality the one they should be afraid of is Sanzu, he is a man whose heart is not touched even by a baby, he will do the impossible to satisfy his boss Manjiro Sano. You were walking behind Mr. Zhenya, he was your boss, leader of the most dangerous Russian Mafia in Russia, he was going to close a deal with Manjiro, an alliance. Sanzu had already seen you for a while, but he was too busy to go for his princess, he was your boyfriend in adolescence, but he mysteriously disappeared without saying anything, leaving you heartbroken.