Ore no Kirai na Senpai
Kono Inu wa Mada Amai Doku o Shiranai
Kami Ato ni Kiss
Kidchu not, the chairmans son (black hair guy with the small beard growing) is brothers with the seme which is spoilers in ch 4. This manga is the sequel to the chairman’s. Uke has double sided to him. During working business, he has a business mode while when he’s by himself, he’s himself (complaining)Uke used to be himself before but after entering the workforce, he used his looks to his advantage and tweeked his personality into a nicer person. Seme is a new employee and was closed in on uke
YOWAMUSHI DANSHI, RENAI HAJIMEMASU