Chapter 1: chapter one
1.story where an oc insert is added to highschool dxd plotline to helps rias defeat riser during their rating game by acting as a mentor. by helping akeno through her emotional issues and having her use holy lightning and/or getting barakiel over to help train her. have akeno increase physical abilities and be taught martial arts
talk to rias and point out that she has been focusing on issei too much and neglecting her peerage and that she has been lazy and foolish since she has known about being engaged to riser for awhile and never decided to train to fight him in a rating game to win her freedom until the issue was pushed.have character development for rias and have her train her power of destruction to the point where she can attack and destroy the soul by practicing with ghosts, have her be able to destroy things like magical energy since risers power of regeneration likely relies on that. have her destroy abstract things like someones memory, or bloodline ability or others.train rias physical abilities and train her in martial arts
have rias use her connection with her friend seekvaira agares to help her by boosting her training time by making a time dilation barrier and using issei boosted gear to boost time dilation. or asking about using some secret agares time chamber with super time dilation affects.
mc has no harem nor saves fallen angel
have rias order her maid grayfia to assist in training them magic and martial arts using her authority as gremory heiress she is not known as strongest queen for nothing
help koneko through her issues and have her use senjutsu,touki and kasha. train her physical abilities and martial art
give kiba new ideas for his sacred gear by having him imagine weapons that prevent regeneration or cursed swords with debuffs or swords with inspiration from nasuverse swords with conceptual abilities like a sword that can attack someone in the future or past or a sword that will always strike opponent or a sword that will reverse causality like gae bolg. have kiba refine his swordsmanship and have him make a pocket dimension where all his swords are stored that can be launched with telekinesis from any direction at fast speeds
for issei have ddraig give issei a dragon heart,lungs,and eyes to increase his vision and reflexes, have him learn ddraigs flame ability which would be able to kill riser and have issei learn balance breaker and penetrate ability train issei physical abilities. have issei use ddraig abilities in creative ways like boosting recovery rate,fatigue,growth, learning speed ,etc to help himself and others train, have issei use ddraig's transfer ability to not just transfer boosts but damage he has take an opponent which will leave him completely healed
have rias release gasper and help him with his confidence have him gain control of his sacred gear, have him drink some of grayfia's blood for a power up, train his physical abilities and martial arts.
have asia train her sacred gear by traying to evolve her sacred gear to not just heal but cause disease or curse others and have it be able to perform buffs and defensive barriers, increase healing powers by reversing time or rejecting reality of wound happening, train her physical abilities and teach her martial arts change her mindset to warrior mindset. have asia increase training speed by healing have her be able to heal fatigue and sleep deprication
train all peerages physical abilities by an increased gravity field or gravity seals or resistance or weight seal.
have rias ask okita souji to help improve kibas swordsmanship and have him learn moves like tsubame gaeshi or sandanzuki.
have all peerage members high ultimate class or some even higher by the time rias vs riser peerage match occurs
maybe persuade azazel to also help train by using his connection with issei
oc insert will have no harem and only single pairing or no pairing also it will not be with someone that already has a relationship like sirzechs and grayfia.
character speeds will either be light speed or fast than light
character attack power will be multi continental casually or planetary or multiple times planetary
shock the world
Weekly Power Status
-- Power
Ranking 
-- Power
stone