The Cooliest's manga / #Has a sequel(2)

Part 2 is here daw: http://www.mangago.me/read-manga/attack_on_titan_dj_seishin_kaimetsu_sokushinzai_kouhen/

Guy is a loner and makes great food. One day he gets a friend who he eats lunch with all the time. He eventually falls in love, only to find out he is actually getting married. Has a sequel called Renchin!