Big things are happening on TV Tropes! New admins, new designs, fewer ads, mobile versions, beta testing opportunities, thematic discovery engine, fun trope tools and toys, and much more - Learn how to help here and discuss here.
In episode 6, after failing to recall who the good looking guy talking to her was from when they were younger, Riko starts wondering about it as she heads home. Her brother passes by shortly afterwards, and sees her go up in metaphorical flames. He then immediately takes her home, and says:
Rentarou: Mom its an emergency! Nee-chan suddenly burst into flames on the side of the road!