You know it! The Invisible Man: A Life-Changing Tale of Reversal

Original title: 御存知！ 透明人間 人生イッパツ逆転絵巻

Kenji, a struggling man working as a cleaner during the day and aiming to become a lawyer, obtains a drug that makes him invisible for 30 minutes. Kenji vows to use this power for the pure and kind beauty Yuko, but an evil plot to lustfully devour Yuko's body is looming.