Eroge no Sao-Ojisan ni Tensei shiteshimatta 1 (Bamboo Comics)

[Machine Translation] Reincarnated in the world of rape eroge! You're supposed to be enjoying an erotic life, but... when you get laid... you die! Endure the erotic onslaught of the lascivious heroine and change your harsh destiny! Erotic Battle Royale Volume 1! One day, a dull man who loves erotic games dies from overdoing his wanking. He was reincarnated into the world of the erotic game "Too Much Popularity VR: Haremuro in the School for Young Ladies! He was reincarnated into the world of the erotic game "Too Much Popularity VR: Let's Harem at School for Ladies! However, he was reincarnated in the world of "Sansuke Kanji," an old man who cuckolds the heroines! Moreover, this character has a destiny to die whenever he cuckolds a heroine. The only way to change this fate is to collect a cheat item called a magic ring that can make wishes come true! He immediately tries to collect it, but the heroines (lascivious women) of the erotic world have it...! And for some reason, if you do something erotic, the old man who plays the role of a pole reverts to the worst situation!

凌辱エロゲ―の世界に転生！！ エロライフ満喫のはずが… セック●したら…死！！？ 痴女ヒロインのエロ猛攻に耐え、過酷な運命を変えろ！！ エロ・バトルロワイヤル第1巻！ エロゲー好きの冴えない男はある日、オ〇ニーのしすぎで死亡。 エロゲー「モテすぎVR お嬢様学校でハーレムろう！」の世界に転生していた。しかし転生した先は…ヒロインたちを寝取る竿役おっさん「竿路参介」になっていた！！　しかもこのキャラ、ヒロインを寝取ると必ず死ぬ運命を持っており、どうしようもないクソキャラだった！！ この運命を変えるにはただ一つ、願いを叶うことができる魔法の指輪という名のチートアイテムを集めること！！　早速集めようとするも、エロゲー世界のヒロイン（痴女）たちが持っていて…！！？　しかも、なぜかエロいことをすると竿役のおっさんに逆戻りする最悪な状況だった！！