Bug, scientific name "Toona sinensis", also known as "bug". In the stink bug family, bugs and fart bodies have smelly gland openings behind them, which release smelly bugs/insects when encountering enemies. Widely distributed in Henan, Shandong, Hebei, Anhui and other regions, especially in summer, belonging to pests.
The gap of the exhaust fan can also come in, thank you for your adoption!