Endless Rain

Endless Rain (音のない雨は降り続く, Oto no Nai Ame wa Furitsuzuku) is a manga written and illustrated by Yuuya. It is licensed in North America by Digital Manga Publishing, which released the manga through its June imprint, on May 13, 2008.

Plot
Akira's mother was the mistress of a CEO. Upon her death, the CEO takes Akira and his little brother into the family, but now Akira must deal with his new relatives and the president of one of his father's companies.