(C107) [Nanao-chan Labo (Nanao Hajime)] Majo no Kairaku Kenkyuujo -Marin no Mezame- (SCANMTL)

After a mischievous halo‑crowned figure signs a contract and declares "our contract is official," she traps the protagonist with a lewd grip, whispering "can't let you off the hook for sneaking into my mansion," while pink tentacles coil around her voluptuous chest and tease her most sensitive spots. The scene intensifies as the bound character cries out, "why did it come to this..." and admits she might not be able to return to heaven, yearning to see "noche" again, highlighting a clash of desire and restraint. The narrative promises a vivid, erotic struggle where a simple agreement becomes a binding, pleasurable ordeal.