During long time when I was missing, I was force to survive in the Island known as Lian Yu.

Seeing of Dan when he was 15 years ago, rise up from the water changes to the Chinese fisherman approaching to someone, revealing the man took off his hood revealing is Dan Queen with long hair.

....

Seeing in the city known as Kuoh Town, Dan reunited his mother Moira with the smiles, changes to Dan meeting his sisters again.

And seeing of Dan meeting Issei again, who is childhood friend during in their elementary school and now Dan in Issei's school.

Dan: Hey, Issei. *Smiles*

Issei: Dan... *Relief and happy tone*

As they bro hug.

.....

Issei: It been 2 years you been missing and heard you have returns and stuck on the Island.

Dan: Fight to survival.

Dan take out his sword as he slash at the enemy and they were scream in pain before they dodge it and he shoot his arrow at enemy.

Making enemy dodge it before the girl in red hair take out sword as she slash at Dan but he dodge it and she kick at Dan but Dan counter back with his kick.

....

Issei: Sound.... Painful....

Dan: Yeah... *nodded his head*

....

Seeing of Dan arriving to his father's old company warehouse, he creating of his own secret lairs. He doing the training like pull ups, push ups, lifting the weights, and training shoot out of the bows.

....

Seeing of the corrupted politician walking to go home but unaware he was followed until he got pull up by the person on top of the building.

???: Toby McLean you had failed of this city! *voice disguised in deep*

Toby: Who the hell are you?! *fear tone*

???: Call me.... Arrow. *voice deep in disguised*

Revealing is Dan in his Arrow suit!

....

Rias: Sona, you had the thing with Issei's best friend right? *teasing tone at her childhood friend*

Sona: What? *blush and embarrassed tone*

Showing Sona & Dan are sitting on bench as they place hand on each other before they kiss each other.

....

Issei: Who are you?!

Seeing of Issei facing on Arrow doesn't know he is his childhood best friend and Arrow hesitated doesn't want his best friend put in danger.

....

Seeing of Dan talking to his close friend Joseph Diggle aka Spartan.

Joseph: Dan... You can't do this alone, you going to need some help. *Serious tone*

Seeing of Black Mamba, changes to Sureshot, Black Canary and Red Arrow.

....

New Friends

Seeing of Medaka Kurokami with a smiles and opens her fan, Reimu brushing at her shrine, seeing of Mashu with a smiles, Kasumi hugging Dan and Miyuki felt close with Dan.

Arrow shoot arrow at Tatsuya Shiba but he dodge it and Tatsuya shoot magic blast at Arrow as he dodge it and he punch at Tatsuya but he block it.

Arrow jump before he dive kick at Tatsuya Shiba but he block it with his kick and create shockwave around the area.

....

Azazel: You really are the stupid kid putting your love one in danger!

Seeing of Dan spending time with his sisters, changes to Dan smiles hanging with Issei with the smiles.

Dan kiss Sona in cheek, change to Dan spending day with Medaka in town while other girl stalk him and jealous. 

....

Seeing of Arrow facing aganst Riser aka the Chicken fried.

Riser: Riser demands who the hell are you?!

Arrow: You about to find out! *voice deep in disguse*

He pull out of his arrow before shoot out.

High School DxD: The Emerald Archer!

So what do you think of Green Arrow X High School DxD? I love Green Arrow and he is badass hero ever! I make trailer for Green Arrow X High School DxD will come out soon. Thank you for the idea, Doct. See you next time!