Kono Koi wa Fusei Login nanode!

An inevitable and sudden romance between the son of a wealthy IT employee trying to buy a marriage agency and the genius hacker girl JK, who finds out that this guy is apparently in love with her.

(Source: MU)

Included one-shots:
Volume 1: Danshi Koukousei to Neko, Torokeru Chocolate ni Amai Kiss: Tsubasa & Chihiro no Baai
Volume 2: Honjitsu Couple Hajimemashita, Torokeru Chocolate ni Amai Kiss: Shiro & Kuro no Baai
Volume 3: Suki toka Ienai!
Volume 4: Senpai Zurui desu