Place it near the start of an edit as the recognisable hook, then follow it with Indian Song to keep the sequence moving. For a second moment later in the same edit, bring in Nico Nico Nii after a visual change, so the two moments do not compete for the same spot.
About this sound
This is a short, roughly fourteen-second musical snippet built around a bright vocal melody sung to the syllables tu turu tuturuu, with no other words to follow. It feels playful and instantly catchy, the kind of light, bouncy tune that sticks in your head after one listen and makes you want to hum along. Its simple, cheerful rhythm gives it an easy, feel-good lift.