Anime XXX - Kedamono Tachi No Sumu Le De Episode 1

Arata Asaoka resides with his horrible, chauvinist father and older brother. Three-man mansion. Arata was born out of wedlock. With merely a semblance of a blood connection to the guy who bastarded him into the world, he was viewed as a second-rate human. Arata endured his father's and brother's cruelty for years due to a lack of alternatives. For years, he feigned contentment and forced a grin for the benefit of strangers... He eventually met the girl who restored his faith in humanity. Koharu Hinomoto is her given name. She shone like a beacon of light. Arata felt happy while he was with Koharu, and he fell head over heels in love with her. He began to believe that he might improve his lot in life. Arata made the decision to leave his family and move in with her. They could make it work even without funding. Anything would have been preferable than his current state of affairs. Arata believed deep down that he and Koharu could create a lovely, caring family. If only he could flee... before his terrible family destroys everything.