Bengo!

From OMFGG Scans:

Long ago Bengo was a feminine, weak looking child who was bullied at school. Koudai was the first person to stand up for Bengo and eventually the two become good friends until they parted ways due to unfortunate circumstances. In the present, Koudai, a lawyer renowned for his continuous losing streak, is assigned to a sure loss case. While meeting his new wacky client, a familiar face appears… Two completely different lawyers that you will love!