It's Not Easy to Be a Man After Travelling to the Future (WN)

Tags: Academy, Accelerated Growth, Adapted to Manhua, Age Progression, Androgynous Characters, Army, Army Building, Artificial Intelligence, Battle Academy, Beautiful Female Lead, Body Tempering, Brotherhood, Calm Protagonist, Caring Protagonist, Cautious Protagonist, Character Growth, Charismatic Protagonist, Cheats, Clever Protagonist, Cold Protagonist, Cosmic Wars, Cross-dressing, Cultivation, Cunning Protagonist, Dense Protagonist, Determined Protagonist, Doting Parents, Evil Organizations, Fast Cultivation, Fast Learner, Female Protagonist, Forced Living Arrangements, Friendship, Futuristic Setting, Genius Protagonist, Handsome Male Lead, Hard-Working Protagonist, Harsh Training, Heroes, Hiding True Abilities, Late Romance, Love Interest Falls in Love First, Loyal Subordinates, Male Yandere, Military, Misunderstandings, Nationalism, Near-Death Experience, Outer Space, Personality Changes, Politics, Possessive Characters, Protagonist Strong from the Start, Reincarnation, Romantic Subplot, Ruthless Protagonist, Shounen-Ai Subplot, Slow Romance, Soldiers, Special Abilities, Strong to Stronger, Time Skip, Underestimated Protagonist, Weak to Strong