PlaguDocta’s review published on Letterboxd:
Noradrenaline. In a cavern filled with water, lies potential treasure. The motif of taking various activities to achieve a goal taken to full force and polished, courtesy of director Shinobu Yaguchi. The playground of being really into your character, directed by playfulness. Light; delicious comic pleasures. Eating delicious rocks. Being a rival to being an achiever. The next goal: already mapped out and planned. The secret formula to pure joy has been achieved. Ends in a title track named My Secret Cache.