Shiranai Koto Shiritai no? The Animation

When the protagonist is forced to step in and manage his grandfather’s struggling plastic model shop after his grandfather falls ill, the business receives an unexpected boost. Risa, a busty and passionate model-building enthusiast who is a regular customer, arrives to work part-time. Thanks to her strict yet dependable guidance, the store successfully reopens and runs smoothly. One day, while tidying up after hours, the protagonist uncovers a special solvent formulated entirely by his grandfather. While chatting with Risa in the shop, a sudden accident occurs: Risa unexpectedly begins changing clothes without taking precautions, causing the protagonist to clumsily spill the newly discovered solvent directly onto her body. As panic sets in, the situation takes an unexpected turn. The solvent triggers a profound physical and emotional shift in Risa, heightening her allure and leaving her entire body throbbing with sensation. Overwhelmed by the sudden change, the busty enthusiast turns to the protagonist with an insistent and seductive plea to help soothe her.