Wakaki Taketora-kun no Nayami
Chapter 1-2: tiger with cat scratch scar on face fell for girly face student Chapter 3-5: with child from a single lady (drinkmate?) but died in an accident & after 5 years his lover returned. Chapter 6-7: bandmates Chapter 7.5 extra from 1st story
Yume demo Nakanaide
Chapters 1-3: saw a classmate crying at a park, he was troubled and try to befriend the classmate. Chapters 4-6: childhood friends, one looks stylish and girly, the other one doesn't care about his friend's look but the people around keeps telling him to advice his friend's clothing style.
Akai Ringo no Nakami Jijou
Could have more chapters for university life or after that. Note: The tankoubon extra chapter has not been scanlated according to mangaupdates
Nijiiro no kimi ga suki
slightly confusing dialogues
Kawaii Obaka-kun