Saki accidentally discovers a Love×2 email from Eri's phone and flies into a rage. She captures Eri on the spot, tightly binds her, and forces her into extreme acts including face sitting and having urine dripped onto her. Amidst this, Saki sincerely confesses her love to Eri, and Eri begins to reciprocate those feelings. Their first piss drinking experience draws the two of them into a deeper, more intimate relationship.