Honkai Star Rail x Kamen Rider Build & Zi-O

Chapter 4: Simulated Universe

Caelus seemed to be regaining consciousness and opened his eyes slowly. At first he was still a little dazed and forgot where he was. Then he realized he was on a space station. Then, March, who had been looking after him for several hours, greeted him.

The two of them chatted and March praised Caelus for saving himself and other people. March considers Caelus to be a hero opposite Sento who is also credited with revealing the weakness of the Doomsday Beast.

In the same room zone, Sento is seen talking to someone. He is Welt Yang, one of the Astral Express members who is quite strong and intelligent.

Sento: "I think we don't see each other often, but there's no harm in chatting for a while, right ?"

Welt: "I don't think you're wrong, Sento. (Smile) Hm, I think 3 years have passed and it feels like a lot of changes have occurred at this station and throughout the galaxy. It all started with your presence, out of nowhere, you amazed all scientists and lay people throughout the galaxy with your skills."

Sento: "I also never thought it would have such a big impact."

Welt: "Yeah. But speaking of skills... I think this is the first time I've actually seen you fight behind sophisticated armor. 2 years ago I thought it was just a rumor, because rarely or never has there been a researcher who can fight like a trained soldier. Researchers or scientists' job is only to research or create something truly amazing. But you... you can actually have more than just one ability."

Sento: "That actually sounds excessive, but I can basically do almost anything. Of course, as long as I want to study it seriously. Well, I guess I'll meet the kid."

Welt: "That kid ? You mean, that kid named Calius, eh, Caelus ?"

Sento: "Yup. I could see potential in him. He is also not an ordinary human. So don't take him lightly."

Welt: "Honestly, I can see great potential in him. But we never know its potential in the future to bring good things to us or bad things to everyone, including us. Moreover, he has a powerful and very dangerous object called Stellaron inside his body. I can at least sense a little but I cannot confirms if that was true."

Sento: "Stellaron, huh ? I studied it independently and looked for several sources from other planet libraries. And the result I concluded was that Stellaron seems to be an object that has the nickname "Cancer of All Worlds". Stellaron is also a mysterious semi-sentient objects that are at the center of many events in universe. What I heard too, Stellarons are most commonly found on planets that have large concentrations of people, mainly due to their ability to grant wishes."

Welt: "You're right about that."

Sento: "It is said that people can have their own wishes granted with Stellaron. But from the many histories recorded in libraries, they always end up causing extraordinary disasters. I don't know further what the reason is, what is clear is that Stellaron can become dangerous if used by people or creatures who have problems too."

Welt: "Hm, okay. I think I can leave Caelus to you too."

Sento: "That's my plan. Well, I have to meet that kid. I'm sure the others have also gathered."

Sento then left Welt. Sento was still thinking about Stellaron which he had previously discussed with Welt, but he chose to forget about it for now. In short, he finally met Caelus, Himeko, and an special guest, Herta.

Himeko: "Oh look who's here."

Caelus: "Mr. Kiryu !"

Sento: "Yo, all of you. (Looking at Herta) You're here ?! I've never seen you here so often."