Battle Spirits is the latest craze in Bayfront City, and Dr. Karigari has finally completed his ideal deck. The only problem is finding an opponent.

The Mobile Rescue Police is advancing with their Mk-III plan. Little do they know, another group would emerge with a Drive Head of their own.

A movie date leads to Sasagawa wondering about Karigari's aesthetic… and if they're even on a date.

One needed to be pure to properly drive a Drive Head. Fortunately, the Hyper Master Slave system Karigari designed had no such rules, and he had the perfect new test-pilot in mind.

Halloween night was always full of terrors. Ghosts, goblins, wanted criminals who just wanted to impress their favorite TV announcers. Sasagawa didn't have a thing to worry about when it came to the last of these.

Sasagawa never took Karigari to be a fan of automobile racing. Yet there he was, seated in the stands of Tomica Speedway on the first day of her new assignment.

All Karigari wanted was for Miss to be happy. It was the uncomfortable thought of another man being the one to make her happy that he wished he could overcome.

She'd chosen a cheery pink. After all, that was the feeling Sasagawa most associated with Karigari.

Just when Karigari and Sasagawa have finally settled down, a new (and oddly cute) trial awaits them.

Sasagawa has a nightmare. Karigari believes he's been living an extended nightmare. Sometimes.

The first time Karigari and Sasagawa vacationed together, it was a coincidence. The second time, it wasn't, so surely it would be perfect. If only the both of them didn't feel so guilty.

In which Karigari finds a new pastime and Sasagawa exploits it.

Subways may not be the most romantic date spot, but Karigari was an eccentric husband, and Sasagawa wouldn't have it any other way. Post movie. Tooth-rotting fluff.

A genius cyborg always thinks to carry an umbrella.

All it took was a very bizarre revenge plot and a pair of impatient subordinates for Karigari and Sasagawa to finally get some time alone together.

If being a genius scientist wasn't enough, Karigari decides to add children's book author to his impressive resume.

Sometimes, SyoriSyori can be an opportunity.

[Post-movie] On a peaceful day, Bayfront City is hit with a severe storm. But the perpetrator of this incident was Dr. Karigari?

Yusuke and Akira never play games with Karigari when they can avoid it.

How to test the waters and see if the lady you admire likes you back? Steal a robot for her of course. Karigari x Sasagawa. AU-ish.