On the Night of My Birthday, We Drunkenly Repeated Creampie Sex Until the Morning Sun Rises and We Ran Out of Sperm… Ichika Matsumoto

'Ichika' is a childhood friend who lives in the same apartment building with her since childhood. As she grew up, she became estranged, but 'Ichika' suddenly proposed to drink with her on her 20th birthday. The first time I drank alcohol, I didn't know...