Chase's human feelings are overflowing in him. Roidmude 051, who Mashin Chaser defeated before, returns only to leave a little girl named Hinako injured. Chase decides to protect Hinako and her brother Hiroshi, as they remind him of Kiriko and Go. Because Chase does not show any emotions, Hinako does not trust him. Chase wishes that he can become a real human and feel happiness when suddenly, the Angel Roidmude appears. She has golden wings - a sign that she already achieved Ultimate Evolution. She grants Chase the emotions he wanted. The Special Investigation Unit is surprised with a completely different Chase who can now feel happiness. However, he is still concerned about Angel's actions and her wish to create a world that differs from what Heart and Brain want to create.