Honoo no Haramase Oppai Ero Appli Gakuen

Our protagonist, Majime Masato, is a quintessential second year high school student with an insatiable penchant for all things lewd. Renowned for his lascivious antics, Majime's reputation precedes him. In the midst of a chance encounter, he rescues a sleek black cat named Shami, who rewards him with a magical 'smartphone of love' as a token of gratitude. What was once an average pervert, Majime rapidly ascends the ranks to emerge as the most perverted student on the planet! Nestled in the heart of Ichisakura Academy, a prestigious institution boasting the nation's top three female bust sizes, Majime finds himself inundated with a plethora of buxom choices.