Proof 9: STEM students fell in love so they tried going on a date ① (理系が恋に落ちたのでデートしてみた。①, Rikei ga koi ni ochitanode dēto shite mita. ①) is the 9th chapter of the Rikei ga Koi ni Ochita no de Shōmei Shite Mita (manga) by Alfred Yamamoto.
At exactly 10AM, Shinya and Ayame met in front of Hachi-Suke statue at the Amusement Park. Shinya commented she was less than a second late, but Ayame corrected him they didn't specify where exactly "in front" was. As they looked at their date plan, they were about to start when Kotonoha interrupted them, telling them they are doing it wrong as they are wearing their lab coats and need to go buy regular clothes. At the mall, Shinya was waiting for Kotonoha and Ayame to return and was worried they may fail to make the deadline for their date.
Shinya recalled the previous day, where they were preparing a thermometer and heart rate monitor to collect data on their vitals during the date. Ena told them that collecting vitals isn't enough and Kotonoha agreed, saying love was a complex emotion. As she gave example of the emotions they need to feel, Shinya and Ayame added a tool to count every time someone feels those emotions.
Back at the present, Shinya was still waiting when Ayame and Kotonoha came back. He told them they were late, but after seeing Ayame in "dating" clothes he added +1 to being charmed and skipping a heart beat. That made Ayame happy and she also increased her counters. As they were wasting time, they proceeded with the plan and wanted to use Kosuke's list of dating tropes they needed to experience. The first trope was Ayame asking Shinya, how does she looked in clothes. Ayame then tried some shoes asking Shinya how does she looked, but Shinya couldn't answer commenting they are many perspectives and functionality. Ayame then proceed to tell him her priorities in shoes. Shinya then started to make a formula to calculate what would be the best shoes for her and Ayame joined and they both started to have fun calculating the better shoes for Ayame.