Like everyone else in the future, Sui's used to having useful robots around... until her father brings one home that looks like a hot guy! Sui names him Vermillion and sets about teaching him all she knows about humans and their lives. Robot-hating girls, jealous guys, amnesia, lost jewels, a fire and a fall from a cliff are just the beginning!

Explosions, rescues, time machines, mistaken identities and former loves all come together to complicate Sui's efforts to teach Vermillion - and now Kira - about being human. Not that Sui has much time for the two hot robots, what with her bad-tempered friend Aoi wreaking havoc on the city...

A trip to America turns dangerous when the plane is hijacked! Luckily everyone's favorite robots are on board to help out, and they make it to their destination unhindered. All is well until Sui decides to vacation in Hawaii... leaving her robot friends behind!

Another robot has been created, but this one is designed to kill! That's not the only complication - can Vermillion and his friends stop a programmed assassin, restore a widow's memory and mend a broken family?

Despite Vermillion and Kira's attempts to erase his negative programming, the assassin AT-6 is killing again. Determined to put an end to the bloodshed once and for all, Kira sets out to kill their creator... but they say love is blind, and loyalty is a powerful thing. Can Kira really kill the man who made him?

Shy high school student Riko Izawa aches for a boyfriend, but guys just won't look her way. One day, she signs up for a three-day trial of a mysterious "lover figurine," and the next thing she knows, a cute naked guy is delivered to her doorstep! The cute naked guy turns out to be smart, super nice, stylish and a gourmet chef. Plus, he looks like a million bucks... Trouble is, that's about what he's going to cost Riko if she didn't return him in time!

Riiko needs money after giving all she had to help pay for Night, so she finds a job at the same place Soshi works. Not wanting Night to worry, she doesn't tell him about her new job, but Night finds out anyway. What's even more worrying to Night is how Riiko is beginning to feel for Soshi...

Another woman has kissed Night, reinitializing his system to accept her as his new girlfriend. Riiko hunts down the apartment where Night is staying with his new lady, frantic to get to him before he gets fully "imprinted" and she loses her chance with him forever.

While out on a date with Night, Riiko meets a boy who looks like her first crush from elementary school - Toshiki Murakami. Even though she's with Night, Toshiki seizes the opportunity to steal a kiss from Riiko...

A miniature version of Night has returned to Riiko while his full-size body gets repaired - but now Soshi has decided to move in with them! Can a mini Night prove to Riiko that his love is just as real as Soshi's?

Riiko has chosen her one true boyfriend, but she finds her life changing quickly after her decision. Will Riiko and her boyfriend have their happily-ever-after?

Japanese reporter Sohei Toge returns to his homeland, where he finally learns the secret that led to his brother's brutal murder at the hands of the Gestapo. But now the Japanese secret police are on his tail, and the SS officer who tortured him in Germany has followed him to Japan to hush him up - permanently.