Overview of Diablo from "That Time I Got Reincarnated as a Slime" (Tensura)

Introduction

• Character: Noir (Diablo)
• Origin: 20 billion-year-old primordial demon
• Personality: Different from other primordials, values freedom over power
• Affiliation: Eventually becomes loyal to Rimuru (Riru)
• Ultimate Skill: Initially refused but later obtains AzaZil Lord of Temptation

Key Events and Insights

Early Life and Discovery

• Initially bored by constant battles amongst primordials
• Chose not to evolve or accept ultimate skills for most of his life
• Discovering the slime (Rimuru) doing unusual things in Jura Forest sparked his interest

Interaction with Shizu Isawa

• Shizu's anti-magic mask deflected Diablo’s attacks, greatly intriguing him
• Stalked Shizu, ultimately leading him to Rimuru

Joining Rimuru

• Waited to be summoned by Rimuru
• Became Rimuru's subordinate, deeply loyal and protective
• Gained evolution through a name given by Rimuru
• His interest in Rimuru included fascination with breaking world rules and unique soul strength

Notable Abilities and Evolutions

• Original Strengths: Already exceptionally powerful without evolving
• Magic Understanding: Fascinated with breaking world rules; capable of bypassing summoning restrictions
• Named by Rimuru: Accepted evolution and ultimate skill for Rimuru’s benefit
• Unique Skills: Mastery over multiple skills without an ultimate skill for a long time
• AzaZil Lord of Temptation: Control and domination skill, upgrades lower-level skills
• Various Abilities: From Space-Time manipulation to necromancy

Major Battles and Conflicts

Against Falmouth

• Demonstrated overwhelming power and strategic mind
• Proved Rimuru’s innocence and established Tempest’s dominance

Volume 11: Final War Initiation

• Faced insector General Razul but left the battle for Shion and Ranga to handle
• Confrontation with Primordial Blue (Rain), showcasing his superior skill

Volume 14: Awakening as True Demon Lord

• Evolution into a true awakened Demon Lord
• Gained powers comparable to Rimuru, if not potentially greater
• Obtained ultimate skill for Rimuru’s service

Volume 18: Fight Against Primordial Angel Zario

• Defeated Zario effortlessly using refined skill tactics

Volume 19: First Loss to Michael

• Fought Michael, possessing ultimate skill with sentient mana
• Loss further solidified his loyalty and pushed for understanding time-stop magic

Volume 21: Battle with Insect Lord Zanis

• Showcased evolving power and God-class weapons
• Interrupted by Xian, keeping us from seeing full potential

Future Prospects

• Anticipated battle with Felway in Volume 22
• Expecting further exploration of his abilities and final power levels

Conclusion

• Character Arc: From indifferent primordial demon to loyal and strategic lieutenant under Rimuru.
• Power Growth: Continuous evolution and skill mastery making him one of the most formidable characters
• Loyalty and Fellowship: Deep connection with Rimuru, seeking fulfillment beyond simple power gains.