Trippers. -Kanojo to no Gakuen Seikatsu o Hakai Suru, Ittsuu no Tegami-

Mochida Eiichi and Tsukimura Kaede are a fresh, innocent couple who have just begun their relationship.
They met through joining the same library committee, and as their relationship deepened, Kaede confessed her feelings.
Eiichi accepted, and they officially became a couple.
However, one day, they receive an email threatening their relationship.
"If you don't want these photos to be spread around, you'll have to obey my orders★"
Despite the playful tone, the email contains clearly candid photos of the couple changing clothes and using the toilet.
Furthermore, the orders are lewd and far too difficult for a newly dating couple.
Out of consideration for each other, they reluctantly comply with the demands of the unseen blackmailer.
But as they carry out the orders, a fierce sexual desire swirling deep within Eiichi, a desire he hadn't even realized existed, begins to rear its head. And as the situation escalates, involving Nanjo Mayumi, Eiichi's childhood friend and the school's Japanese language teacher...

Eiichi's inhibitions, once broken, remain unchecked.