The Protagonist's Party is Too Diligent - Chapter 100

Lynch crosses over to the Wizard World and becomes a Wizard Apprentice specializing in Biological Transformation, armed with a Skill Level system.Thus...He equips a lizard with bat wings, transforming it into a ferocious yet adorable Dragon Attribute creature.He transplants gastric mucosa to the Cannibal Flower to enhance its digestive system.He equips the Poisonous Mushroom with a mouthpiece, transforming it into a Little Spraying Mushroom.Transplanting eyeballs, modifying organs, adding limbs...From a little wizard, he hustles his way to becoming the master of the world, starting from the transformation of low-level Magic Plants until he creates an Angel.

[Warning 18+ Hentai Novel]After his parents move overseas for work, Haruto, a 19-year-old boy, is sent to live with his grandfather in a quiet rural village of Japan. Far away from the city’s noise, he expects a boring, lonely life surrounded by rice fields and temples.But the countryside holds secrets—behind the modest smiles of the villagers are girls who burn with unspoken desire. From the widow next door who bathes naked by the river, to the shy schoolgirl working at the family inn, to the shrine maiden with a hidden craving for cock—Haruto’s arrival stirs a wave of lust in this quiet place.Soon, he finds himself entangled in nights of steamy encounters, sucking and licking pussy under the moonlight, feeling warm tits pressed against him, getting blowjobs in hidden barns, and filling tight, dripping cunts with his cock until they overflow.For Haruto, the countryside isn’t peaceful at all—it’s a paradise of naked bodies, moans echoing through the fields, and endless forbidden pleasure.

A top hacker was chosen by the Lord God to be reborn into countless worlds, always as an expendable villain.

With no free will, every world became a dead end. Every one of his lives ended tragically.

Finally, after wresting control of the Villain System, this ace hacker decided to enact revenge. Even if his very bones were rotten, he’d choose to occupy the very heights of morality, if only on the surface.

Thus, he would change his fate as an abused slag.

- Description from novelupdates

The story is about a man whose compulsive tendencies make it impossible for him to keep a job, and a young girl who skips school and loves insects. The two meet, come to support each other in reintegrating into society, and fall in love. There’s a problem, however: namely, the parasites in their heads.