I had been searching for this manga for months now, and this is my only way to find the title of this manga. Many thanks to all of you! This manga is not a one shot. Genre - mature or smut

Female protagonist is a student with glasses and male protagonist is a teacher (chemistry teacher?) with a pet bird. I forgot who confesses who, sorry! The teacher kinda tortures her(sexually?) after that and the student realizes he is not who she thinks he is and told no one about this. She always felt like trapped in a bird cage. And one time, she accidently dropped her glasses because someone bumped into her (I think, sorry). The teacher saw that from somewhere and got jealous because he does not what anyone to know how she looks like without glasses and does you know what.

Thank you once again! I hope you guys could help me! Thanks!

I'm interested, bring it up~

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