Autumn Holiday-making! Lunchbox is in the Underbush

This episode is more of a comical retrospective analysis of a camping/hiking school field trip conducted as a hybrid between a police interrogation and the Christian sacrament of confession as is demonstrated with Chisato who begins by explaining that Kaoru (and to a lesser extent) along with Shiho and Aoi were all excited about the field trip during the bus ride there. During the actual hiking trip, Kaoru and her teammates painting their leader Minamoto as a common relative of theirs prompts Chisato to recount that she has had euphoric company with Minamoto. Chisato's euphoric daydream example is quickly extinguished when a small pebble hits Kaoru who immediately accuses Touno of the offense in spite of the evidence indicating the inverse. Kaoru bragging about her homemade lunch ignites Touno's jealousy and a keep-away game whose aftermath is a scavenger hunt that nobody was prepared for. During a layover to wait out the rainstorm, Shiho and Aoi debate how to locate Kaoru (who is out of communication range) while Chisato jumps to conclusions from the limited data provided by her Level 2 telepathy. Kaoru and Touno's heart-to-heart to understand each other better quickly yields to the below-ground facility being elevated at-ground at Taizou's behest. Kaoru reunited with her teammates/classmates and her lost lunch has all the makings of a happy ending -- and would have been if Mio had not seized Kaoru's lunch away. P.A.N.D.R.A. seems to have learned of the below-ground facility that Taizou had built and has charged Mio, Muscle, and Momotarou the exploration and appraisal thereof. The resolution of some enigmas gives way to a comical keep-away game with Kaoru's lunch that ends in a B.A.B.E.L. victory due to Momotarou's inability to stay aloft with the mass of Kaoru's lunch.