Ikkyuu Nyuukon or Only My Oppai Soul, is a four episode OVA released in 2019. Each episode is 22 minutes long. It’s based on a manga called Ikkyu Nyuukon. Notice the spelling difference.
Schoolboy Takahashi has a crush on Kaori Asakura who is in the school volleyball club. Takahashi’s friend Satou, also a member of the volleyball club, agrees to introduce him to Kaori. Takahashi gets a message telling him to come to the club room. Entering the club room with great expectations, Takahashi is met by a brassiere that comes falling from above. He examines it it in his hands, and a member of the volleyball club takes a picture. He’s been framed as a panties thief! A boy falls into a trap that the girls at the volleyball club did for him. Now he will have to do whatever they want.
Ikky Hanime Episode 1
Takahashi had a crush on Kaori, but when a classmate tries to help him out, the president of the volleyball club sets her eyes on him and decides to have her way with him before making him the new manager. Now its Takahashis job to take care of all the girls in the club!
Ikkyuu Nyuukon Episode 2
Satou of the girls’ volleyball club watches her senpai have sex with club manager Takahashi every day. She masturbates daily to quell her growing desires but to little effect. Sato devises a plan that buys her and Takahashi some alone time in a storage room. (ikky hanime)
As their summer tournament approaches, the girls’ volleyball club sets out on a trip to training camp. But as soon as the club members arrive, they throw a BBQ party! And after that, everyone wants some of Takahashi’s cock!
The Volleyball Team helps Asakura break out of her shell with some special training. Then, Hiro needs someone cute for his public event, so he gets his friend Nana to join in! (ikky hanime)
Shinozuka has been helping Shunya prepare for high school soccer nationals, but when they loose the game, she decides to console him. Then, Nozomi needs some help picking out a swimsuit, so her senpai helps by picking out the skimpiest one in the shop!