Reisen Udongein Inaba was previously a moon rabbit, but she is now living as an earth rabbit at Eientei. She often visits the Human Village to sell medicine.

Seiran is a former member of the earth recon unit Eagle Ravi. She used to be in charge of the infiltration operations, but now she lives in Gensokyo and runs Seiran's, a dango shop in feverish competition with Ringo's.

After making her rounds as usual, Reisen heads to Ringo's to get some dango as a present for Eirin and Kaguya. To her disappointment, she finds a long line in front of the shop. She is just about to give up when she notices that Seiran's is looking rather deserted.

Reisen approaches Seiran, who greets her with a smile. Is this just an act of courtesy directed toward a client? Or does she recall the time they fought during a past incident?

Reisen had been forced to exchange bullets with the Lunarians in order to resolve the incident. Seiran was the gunslinger sent out to try to take her down then, but now the two rabbits both live in Gensokyo and get along fairly well.