Boku no Yasashii Oniisan
Other names: 僕のやさしいお兄さん, 我的温柔大哥, Boku no Yasashii Onii-san, My Gentle Brother
Author: Ima Ichiko
Artis: Ima Ichiko
When Satoshi Kashiwabara went to Nichoume, he fell in love for the first time with Nichoume's prince; a known playboy. But right after they kissed, he received a message saying his father was in critical condition and left the hotel. However, a few days later, he found himself living with his step-brother, who turned out to be the prince himself!!! It's a romantic comedy about step-brothers suddenly living together knowing they can't be together.