Seko Daigo

Seko Daigo (瀬古 大吾) is the dual protagonist from the manga series S Rare Soubi no Niau Kanojo. He is a teenage boy who gets caught up in a series of fantastic adventures when a magical girl from his mobile phone game comes to life.

Consumed By

 * Lamia

Personality
Daigo is incredibly stingy and becomes a reluctant hero when he unwittingly gets enveloped in the crisis of Grimzelia monsters coming to life and must help Yurina defeat them by playing the phone game (a game requiring micro-transactions, which goes against his miserly principles). Although he begrudgingly plays the game and avoids paying whenever he can, Daigo nonetheless grows to care about Yurina and his comrades. Upon learning that he is the vessel for the Second Demon King, who is fated to mate with the Grimzelia monsters to create a new generation, Daigo is repulsed by the idea and refuses to mate with the monsters despite their advances. When he is caught by Lamia, seemingly for the purpose of mating with her, he is baffled and disoriented when she instead swallows him.

Background
After a new mobile phone game called Encircled Grimzelia is released, Daigo reluctantly starts playing it after his childhood friend Yuki Ea pressures him into doing so. Surprisingly, the game's heroine, Yurina, comes to life as do many of the game's monsters and Daigo and Yurina embark on an adventure to defeat the invading monsters, gaining several allies along the way. Eventually, Daigo's friend Ea is abducted by the monster Lamia whom Daigo and Yurina discover is the leader of the monsters. They then make it their mission to rescue Ea and defeat Lamia.

Chapters 44-45
After storming the enemy fortress, facing various monster girls, and rescuing Yuki Ea, Daigo, Yurina, and their comrades finally confront Lamia. Having identified Daigo as the Second Demon King, whom they need to mate with to create a new generation of monsters, Lamia and the remaining monsters battle with Daigo's group so they may claim him, as he is refuses to mate with them. During the battle, Daigo is attacked by the monster girl Puppeteer, who throws a puppet at him. The puppet zaps Daigo, linking his movements with the puppets own. Puppeteer then throws the puppet through the air towards Lamia, forcing Daigo to do the same. Daigo lands directly in Lamia's "predatory mouth" and, to Daigo and everyone's surprise, he is swallowed whole.

After he is devoured, Lamia absorbs his Demon King powers, allowing her to self-procreate, which had been her plan all along. Daigo's comrades soon after enact a plan to rescue him from Lamia's stomach. After eight of them forcibly enter Lamia's body, they find Daigo in suspended animation in an infinite void inside Lamia's body. They manage to release him and Daigo is spit back out by Lamia. However, since Lamia has permanently absorbed Daigo's Demon King powers, he has been permanently transformed into a girl.

Daigo joins his comrades and partakes in a long battle with Lamia. Eventually, he and the others managed to defeat her, releasing those she has devoured and restoring Daigo's manhood.