I Was Ntr’d by My Girlfriend, and When I Ignored the Popular Model Beside Me Because She Was Noisy, She Turned Into a Yandere~All the Girls I Was Involved With Turned Into Yandere~

Source: https://kakuyomu.jp/works/16818093092067930254

synopsis

Sendo Reito, the main character, is seated next to Yamanashi Anri, a popular model known to everyone. She acts tough, but keeps hurling abuses at Sendo. Sensing that she was being too loud, Sendo decided to ignore her. The effect was immediate and the teasing stopped, but Yamanashi seemed somewhat displeased.

One day, Yamanashi contacted Sendo on her phone. The image pasted with the voice message shows Kyoda on her knees, the hated man who slept with Sendo’s girlfriend. Confused, Sendo gradually senses that things are taking a disturbing turn. When he answered the call, her behavior was different from usual. She has turned into a yandere, and there is nothing he can do to stop her…
 
[Hey, you’ll accept me, won’t you?]

Episode 1 – ignore

Episode 2 – challenge

Episode 3 – front door

Episode 4 – reason

Episode 5 – next day

Episode 6 – pursuit

Episode 7 – persistence

Episode 8 – one’s home

Episode 9 – control

Episode 10 – second person

Episode 11 – first meeting

Episode 12 – reason

Episode 13 – Tetsujin

Episode 14 – invasion

Episode 15 – encounter

Episode 16 – dilemma

Episode 17 – confronting

Episode 18 – comfort

Episode 19 – a third force

Episode 20 – shock

Episode 21 – student council

Episode 22 – one’s way back

Episode 23 – vixen

Episode 24 – the next morning

Episode 25 – waiting

Episode 26 – prize

Episode 27 – House

Episode 28 – tactician

Episode 29 – scene of carnage

Episode 30 – doubt

Episode 31 – conclusion

Episode 32 – reflection

Episode 33 – school infirmary

Episode 34 – meaning

Episode 35 – treatment

Episode 36 – welcome

Episode 37 – pursue

Episode 38 – Just a little bit

Episode 39 – recollection