*cough* excuse me what's the title of the manga on the last page? thanks..

It's on the bottom corner of the last page.

I googled it and cant find anything under that name T.T

here information about Nakanaide yo baby
https://www.mangaupdates.com/series.html?id=140963
you can buy it in japanese^^ https://www.amazon.co.jp/泣かないでよベイビー-ビーボーイコミックスデラックス-山本-アタル/dp/4799732862

thank you!