Amazon Love Pills Arc

The  is the 19th story arc covered in the Ranma ½ manga, spanning three chapters. This arc was included in volume 10 of the  and volume 8 of the Viz Media tankōbon.

Plot Summary
After arriving at the beach, Ranma decide to set Happosai up with Shampoo's Great-grandmother in the hope it will stop him from going after the other younger female beach patrons. Unfortunately Happosai is far from impressed with Ranma's choice so hands over a bracelet to Shampoo which Cologne recognises as the same bracelet that was stolen from her village. Devastated by how his "lil' Cologne" has aged, Happosai flees with the bracelet. The bracelet has three pills which will make a person fall in love with the first member of the opposite sex and vary in duration: instant, one day, and a lifetime. The instant pill is used on Ranma and he briefly falls in love with Cologne, but Akane accidentally swallows the lifetime pill. While preventing Akane from looking at anyone, Ranma almost drowns her, but also allows the pill to come back up. The pill is thrown away and swallowed by an octopus who falls in love with Happosai.

Major Events

 * Cologne's name is revealed.
 * Cologne and Happosai's younger selves are seen for the first time.
 * Cologne and Happosai meet face-to-face for the first time since their youth.

Changes in anime

 * The episode starts with a random guy flirting with the female Ranma.
 * In anime continuity Cologne and Happosai have met a few times already.
 * Anime never reveals how exactly Happosai got the bracelet (that is implied though).
 * However, the scene confirming Cologne and Happosai shared history will be adapted (and expanded) later, in mostly filler "Back to the Happosai!".
 * When Ranma falls in love with Cologne, she seems to be much more into it than in manga.
 * Day Pill is accidentally used on P-Chan, but then quickly spits out into the ocean.
 * Octopus that eats the Live Pill is way larger.

Characters Introduced

 * No characters debuted in this arc.