The teachers and students of Kimetsu Academy turned their attention towards a black Rolls Royce Phantom car inside the school compound. The fabulous car is owned by the chief director of Black Narcissus, Kazuhiko Momura.

It's been a long time since the last time Kazuhiko came to Kimetsu Academy. He was here to visit his former classmate who's also the principal of Kimetsu Academy, Amane Ubuyashiki.

"Who's that?" One of the students was curious.

"You don't know him? He's Kazuhiko Momura!" another student answered.

"I heard a rumour that he's a former classmate of our principal" a female student said.

"Really?"

"I wonder why our principal's former classmate is coming to our school" Kyogai wondered.

"Maybe he just want to play shogi with our principal" Giyuu guessed.

"I don't think so" Sanemi rolled his eyes.

Meanwhile, Amane was busy doing her work in the principal's office. Soon, she heard a knock from outside of her room.

"Come in" Amane gave her permission.

When the person opened the door, Amane's eyes widened. It was Kazuhiko who opened the door.

"Kazuhiko?" Amane was speechless.

Kazuhiko then took his seat in front of Amane.

"Amane...long time no see" Kazuhiko greeted his former classmate.

...

"Ha! now you're a bankrupt!" Kamanue shouted, pointed his index finger towards Wakuraba.

"What!?" Wakuraba shouted in disbelief.

Rokuro, Wakuraba, Kamanue and Hairou were seen playing Monopoly in the living room. They just got suspended from their jobs for three months since yesterday.

Knock! Knock! Knock!

"Hairo, open the door" Rokuro told.

"Why me? Go open it yourself" Hairo refused.

"Just open it already!" Rokuro insisted.

"Fine, fine, I open it" Hairou sighed as he then walked towards the door.

As he opened the door, Hairou saw Douma stood in front of him.

"Hello, Hairou!" Douma greeted with a smile.

"Douma-san" Hairou unhappily greeted the scam artist.

"Where's your other friends?" Douma asked.

Hairou then glanced inside for a few seconds before turned his face.

"Hey, you didn't pay yet!"

Both Hairou and Douma can heard Rokuro's voice from inside.

"They're playing monopoly" Hairou answered.

"Actually, I come here because I want to give you this" Douma said as he gave the black haired guy a card.

"A card?" Hairou glanced at the card.

"An invitation card! My adopted sister will get married next week" Douma exclaimed cheerily.

"Wait a minute, I don't remember if you have an adopted sister" Hairou was confused.

"It's a long story! By the way, I need to go now! I got a lot of people to visit, and have a nice day!" Douma said for the last time as he then waved his hands before walked away.

"Huh..." Hairou sighed as he then closed the door.

...

Silmor's spaceship has finally departed from Titan, Saturn's largest moon. And now, the spaceship was heading to Earth, and Silmor was more than eager to meet her daughter again.

Unfortunately, Silmor's crew was facing a new problem.

An Erionian spaceship just followed his spaceship from behind.

"I wish they could leave us alone, but unfortunately they don't" Ogelz said. He has a purple skin with a pair of eyestalks. His height is about five feet and he wore a long-sleeved dark blue jumpsuit with black mecha shoes.

"Captain, we got a problem!" Aleriox shouted in distress. She has short forest green hair with a pair of reddish pink antennas and tulip shaped ears. She wore a long-sleeved knee-length lime green futuristic dress, dark cyan tight pants with dark green gloves and matching high-heeled boots. Her age is three years older than Serenia.

"What's the matter?" Silmor quickly rushed inside the control room.

"We just detected an Erionian spaceship following our spaceship from behind" Verrom was typing something on the screen. His skin is reddish purple and his head is looking similar to pteranodon's head. He wore a reddish brown metallic jumper pants.

"The Erionians must been already aware of our presence" Silmor sighed.

"Should we launch our nuclear missile, Captain?" Verrom suggested.

"No need, just increase our spaceship's speed. We don't have time to deal with them right now" Silmor ordered.

"Yes, Captain!" Verrom nodded as he resumed typing on the screen. "Maximum speed activated!"

Silmor's spaceship swiftly leaving the enemy spaceship, successfully escaped the Erionians without any skirmishes.

...

"Why do you come here?" Amane eyed warily at her former classmate.

"Is it wrong for me to visit my own former classmate?" Kazuhiko raised his eyebrows.

"I never said it's wrong" Amane sighed.

"Then?"

"At least you should tell me first become you come to my school" Amane reprimanded.

"So sorry about that" Kazuhiko chuckled.

"So what's business do you have with me?" Amane asked again.

"This" Kazuhiko gave his old friend a report file. "Read it"

The were two reports compiled in the file. The first report was about a student of high school section of Kimetsu Academy went missing after encountered a mysterious creature known as "The Birdman". While the second report was about a middle school section teacher, Toshiro Tonoyama severely injured after being assaulted by "The Night Crawler" in the graveyard.

"Do you know that only in this month, 575 high school students across this country went missing?" Kazuhiko stated. "157 injured students and 45 deaths recorded"

Amane was silent in grief.

"Mizuki Himashi, she's a third year student in here, right?" Kazuhiko asked.

"Yes..." Amane nodded slowly.

"And Tonoyama?"

"He's the English teacher in middle school section"

"Okay, I'm listening" Kazuhiko nodded.

"Do you think the police can solve the case?" Amane was uncertain.

"Since this cases are involving extraterrestrial creatures, I think it's better for you to rely on my agents, they can deal better than what had you expected, trust me" Kazuhiko exclaimed.

Amane was silent. Can she rely on her former classmate to solve the cases?

To be continued...