Hot Gimmick by Miki Aihara
This series has the most adorable art! I will love one of my friends forever for introducing me to Hot Gimmick. Humor and darkness balance out really well throughout the volumes. The characters are developed with full flaws and triumphs which make for an awesomely compelling read. Hot Gimmick also leans more towards the naughty side with quite a bit of nudity, sexual situations, drinking and pregnancy tests. The series is a fun and emotional ride, perfect for those looking for a serious yet hilarious manga.