The Anime Lad
Four teachers and their students keep entering ordinary school situations that immediately become sexually charged accidents. Water, damaged doors, and unreliable clothing all participate. None of the adults scheduled this material in the lesson plan. Probability has nevertheless joined the faculty and appears to have considerable influence over room assignments.
Super Eyepatch Fox
School day begins. A teacher and student share a routine space. Something breaks or spills. Clothing becomes unreliable. Panic follows. The short episodes repeat the structure across four pairings, moving quickly from ordinary setup to improbable ecchi collision. Every mundane errand becomes another opportunity for the building to misbehave.
Gigguku
This show can turn water or a broken door into a complete school emergency almost instantly. Four teacher-student pairs keep stumbling into situations no planner could invent with a straight face. The short format gives every accident one job. Escalate fast, embarrass everyone, and get out before probability asks questions!
Father's Basement
Teacher-student fan service is a substantial warning label, and the scenarios make no attempt at plausible causality. Four pairs are pushed into suggestive accidents by failing doors or conveniently placed water. The short runtime is the one structural mercy. Each setup reaches its ecchi point quickly, then leaves before the contrivance can demand an explanation.