anyone know this yaoi manga?? I think it's got oneshots in it and there's a chapter (not the first chapter) about student-sensei,, The boy likes the sensei and the sensei always helps him tying his necktie. The boy always likes him and sensei knows about this but he refuses when the boy confess to him. And I think there's also a misunderstanding with a girl or a female teacher (i forget which one) and it also involves the boy's classmate.
Thank you in advance~!

Katekyo! vol1 ch6-7
or Sore wa Tabete wa Ikemasen ch5

Whoaaa it's you again, fvvjy~!!!! You're a goddess!! I only meant one of them and you give me 2 similar ones, wow thank you so much~♥