Adult PC Game: Akasen Powerleak v0.2 by Aisuuuuu Archive

One day, the Main Protagonist wakes up in the night due to a weird feeling at her crotch, only to find out a penis grew in the night, she tried to keep sleeping and figure out what's happening in the morning, but when she wakes up again, the penis disappeared. Was it all just a dream...? Her interest for Akasen grew since then, and these mysterious events, true or not, she decide to go into Akasen, assured that if there is an answer, it will be here.