Yukimura and the others will be giving presentations at the summer study sessions. There's less than a month left until the training camp, but Kosuke still hasn't picked a research theme. Professor Ikeda suggests research into "an algorithm that could instantly find the True End in any dating game." On the other hand, Yukimura and Himuro are focused on the hormone which is released when a person is touched by someone they love - oxytocin. By investigating the amount present in a person's saliva, they think they might be able to determine if the person loves the one who touched them, and they decide to immediately put it to the test with some close contact...
A hormone produced in places like 
the brain, ovaries, and testes.
.هرمون يتمّ إفرازه في مناطق كالدماغ، المبيض والخصيتين
Ein Hormon, das im Hirn, den Eierstöcken
oder im Sack produziert wird.
Una hormona producida en el cerebro,
ovarios y testículos.
Una hormona producida en el cerebro,
los ovarios y los testículos.
Une hormone produite par le cerveau,
les ovaires et les testicules.
Un ormone prodotto in organi
come il cervello, le ovaie e i testicoli.
Um hormônio prodursido em lugares
como o cérebro, os ovários e os testículos!
Гормон, образующий в головном мозге, 
яичниках и яичках, мишка.