Break up, exes back to lovers

Tomoki works as a manger at a Japanese style cafe along with his ex boyfriend & cafe owner ,Naoto ..Despite their constant bickering both of them are very much in love with each other & even the staffs knows about it except for the very two people involved ..Until one day the newcomer joined which finally caused their stagnant status to move forward

seme & uke had a break-up ..but uke was not sure about the seme's feelings for him since seme use to treat everyone equally ...so uke thought he might not be serious...ahhh miscommunication sucks

The manga is continuing the relationship between two boys, Kusakabe Hikaru and Sajou Rihito, after high school arc completed and now after 3 years focusing into their college life...current changes in their relationship...??..the distance they put &... the painful break-up
----➽➽series order-
1.Doukyuusei (NAKAMURA Asumiko)
2.Sotsugyousei
3.Doukyuusei & Sotsugyousei Fanbook (Side Story)
4.Occupation to Beloved
5.Graduation Certificate
6.blanc
7.Sora to Hara (Side Story)

EX-LOVERS BROTHER IN LAW
Lee Joon's only family is his sister after losing his parents in an accident ...While working part-time to earn money for college tuition he meets Sang-Hyeon, a man with relaxed attitude,with mature atmosphere & financially stable.. Lee Joon fell for Sang-Hyeon the two loved each other, but as they began to fight frequently Lee Joon ended up pushing Sang Hyeon away...Until one day, Sang-Hyun came back to his life as his brother -in-law..