Giant Heroine (R) Tentacle Humiliation, Full-Lip Girl Chapter, Mizuho Yuki, GRET-009

Yuki transforms into a plump-lipped girl to protect the peace of Earth, fighting monsters every day until she's covered in wounds. To enable humanity to fight giant creatures, she successfully uses the power of science to gigantify humans! However, her brain cannot control her gigantic body. In trying to stop her from being taken away, the plump-lipped girl is severely injured, and a tentacle monster steals the capsules needed for her gigantification…