Being a Lighter and Softer Ultra Series doesn't mean that its immune to the Tear Jerker territory.
Friends of the Forest
- Yamarawa's entire backstory and the tragedy of its love and care for children.
Move! Monster
- While it's a heartwarming moment, the moment where Mudon is reunited with her baby counts, an illusion of it conjured by Cosmos so she can see her baby again, she cries tears of joy at the sight and then reaches for its hand, once she takes it she disintegrates into dust along with her baby, her spirit finally in peace and able to reunite with her family in the afterlife, both audience and the characters in-universe shed tears at the sight of the reunion.
Friend
- Shunji Horimura is The Aloner mid school student who distanced himself from others when his old friends are accepted into different schools, making him socially awkward around his classmates. All these changes when he found Sol, an alien who also shares the pain of Friendless Background and the two became fast friends. Unfortunately by the end of the episode, Sol's communication was permanently severed, reducing Horimura to tears that he would find his late friend by growing up into becoming an astronaut. What follows after this is a Heartwarming Moments where he made his first step in befriending his new friends.
Enemy of Chaos
- Mazalgas dying from its injuries right after being purified by Cosmos, considering how the creature was an innocent monster who was even helping humanity against Chaos Header, yet the JADF's refusal to view Kaiju as anything but enemies to be destroyed lead to its death.
Future Monster
- The death of the baby Arados, who sacrifices itself to save Cosmos from Ragstone Mechalator and Alien Nowar. Its death hits Cosmos hard enough that the normally peaceful Ultra wordlessly destroys Alien Nowar's ship with him on it for it. Both Musashi and Hiura are saddened by its death as well, apologizing to Arados for not being able to protect and save it. Luckily, the adult Arados save the day allowing for tears of joy to be shed once Arados comes back to life.
True Hero
- Musashi's desperate desire to reason with Chaos Header instead of killing it, once he sees that there's responses from its heart to his words when he attempts to stop the fight with it, even when everyone else has no hope of getting through to Chaos Header.
- Cosmos' and Musashi's goodbye. Musashi begs Cosmos to stay with him and protect monsters, to help him "fly" like Cosmos did when Musashi was a young kid. But Cosmos reassures him that he is kind and strong enough to preserve peace on Earth all on his own before departing with Chaos Header into outer space.
