Timeline

Before Magical Noir Quest

(yb = years before)

7yb:	Kotarou Yuu contracts to the Seventh
6yb: 	Kotarou Yuu obtains the XIth Golden Weapon
	Tomoe Mami and *Kure Kirika contracts to the Ninth [2 months prior to Malal?]
	Charlemagne Victoria Sasz contracts to the Ninth
   	Kaneda Madoka (Malal) contracts to the Ninth [2/3 months prior to Malal Quest?]
	The Springfield sisters contracts to the Eighth
	Wendy Cooldown contracts to the Eighth
	Ekaterina Valnikov (Kharn) contracts to the Ninth
	Malal undergoes Warmaster training in the Ninth	
5yb:	Malal Quest
	Amber contracts to the Eighth
    	Sakura Kyoko contracts to the Ninth
    	Miki Sayaka contracts to the Ninth [5 months after Malal Quest]
	Karasawa Enishi contracts to the Ninth	
4yb:	Eversor Kharn
	Rea Ashford contracts to the Ninth	
3yb:	Kharn becomes Warmaster of the Ninth
2yb:	Mami Quest, Girl A (Murderface) is found
    	Kyuubey Quest, Chitose Yuma (Omegon) contracts to the Ninth
        Sayaka Quest
	Dahlia Marigold resigns as Warmaster of the Eighth, Mary Sue Springfield is the new Warmaster     
1.5yb:	Kharn Quest, the Third Officio is dissolved and absorbed into the Ninth [6 months after Girl A]
     	Ishikawa Kumatora contracts to the Ninth [6 months after Girl A]
        Forgotten Story
     	MAXIMUM CHRISTMAS
     	Walpurgisnacht in Mitakihara, Malal and most of the Ninth's Culexus dies.
     	Kharn abdicates her position as Warmaster of the Ninth, becomes Murderface's partner
	Mami takes up the vacant position as Warmaster-in-training in the Ninth 
1yb: 	Charlemagne retires from fieldwork
	Kharn retires/exiled to the Ninth's R&D facilities in Siberia [6 months before MGNQ]
        Wendy dies in battle with Nicole, later brought back by Pinky
0yb:	MGNQ begins


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Notes:

*This is sort of a retcon since in the Retirement Arc, Kirika is written to be 17 years old and three years into service in the dossier.