He has a sister complex

 

Name: Ketsuno Seimei, Sister Complex, Brother-In-Law
Origin: Gintama
Gender: Male
Classification: Human, Onmyouji, Leader of the Ketsuno Clan
Age: Unknown
Powers and Abilities: Super strength, speed, durability, agility, endurance, can use Onmyouji magic which grants him various abilities such as barriers, energy blasts, fire manipulation, weather manipulation, energy sharing, shikigami summoning
Weaknesses: Nothing notable
Destructive Capacity: City level+ (capable of producing enough energy to completely control the weather all over Edo, Seimei and his subordinates were capable of doing this, it should be noted that Seimei later absorbs all of the energy that he lent to the shikigami he had deployed all over Edo and becomes much stronger than Douman who is capable of controlling the weather as well)
Range: Several dozen meters with energy blasts
Speed: Hypersonic+ (comparable to Sougo)
Durability: City level+ via powerscaling (survived being crushed in Antenmaru's hand, also Douman, a weaker character was also capable of taking attacks from a full-power Seimei)
Lifting Strength: At least Class 5
Striking Strength:
Class TJ+ via powerscaling, possibly higher (Onmyouji magic significantly amps Seimei)
Stamina: Superhuman+ (capable of sharing a massive amount of energy with his allies and show no signs of fatigue)
Standard Equipment: His fan
Intelligence: Prodigy Onmyouji, efficient leader 
Notable Attacks/Techniques:

Notable OBD Victories:

Notable OBD Losses:

Other: