SPOILER ALERT!!!
These notes are incomplete, but it made it easier to find each character between checkpoints. There seems to always be 3 main places that each character frequents and with rare exceptions (particularly when skipping class might find them elsewhere). Also note that you won't always find your love interest at their most frequented locations, sometimes they're just not around during a certain time in the route you chose. Without further ado, here are my personal notes (they're incomplete, but will save you time, and only for the boys):
Hui:
Classes: Alchemy, History of Magic, Practical 101
Extracurricular: Kitchen, library studying
Find him: Garden, Forest, Library reading or studying (curricular, 4pm and 8pm),
Routine: Will go to Garden right before class starts
Darcy:
Classes: Alchemy, Practical 101, Potions, Malediction
Extracurricular: Library workstudy and study (+chance),
Find me: 8pm practice magic at field +chance, practice magic at Arena, tea in the afternoon
Skip class: doesn't skip
Mysterious Boy Luca:
About: you can aproach him after meeting in Malediction class, Claire have some info on him
Classes: Malediction
Find him: Forest at 10AM, study Library at 10AM, Extracurricular time Wander at Gardens<Press>Wander>Wander further, Explore forest at 8pm
Activations:
Skip class: brew coffee in kitchen
Alucain:
Classes: History of Magic, Alchemy, Cryptozoology, Malediction
Find him: Garden, Tutoring, Library during curricular and at night 8pm(project requirement), check up at Infirmary,
Routine: Once you work with him in class, you can find him in the Library for your project.
??? Dragon Boy:
Classes: History of magic, Astrology, Arithmancy, Malediction
Condition: join the field club, you only can approach in certain scenarios, usually surrounded by friends
Extracurricular: fieldclub.
Succubus Boy Eris:
Classes: Alchemy, Practical 101, Combat,Defense
Activation:
Skips class often: skip together at field, forest, bathhouse and infirmary
Spinel Angel Bunny Blonde Prince Boy:
Classes: Alchemy, Astrology, Practical 101, Malediction
Extracurricular: Help Student Council
Find him:
Cat boy Siri:
Classes: Alchemy, Combat,Defense, Practical 101, Astrology, Malediction
Activation: Skip malediction on fri at 8am
Prankster & F*ckin Psycho Bugbear:
Classes: Practical 101, Potions, History of Magic, CombatDefense, Healing
Find him: bathhouse for extracurricular?, exercise in Forest at 8pm, chance+ pulling prank infirmary at 8pm
Activation: skip classes to find him in the arena (Bad+ req for activation not sure?)
DEATH: there's a chance if you practice magic in the Forest at 8pm, a creepy-ah scene will play and he'll kill you.
Gardener boy Titus:
About: punch him in the forest at 8pm and he'll give you an item,
Classes: History of Magic, Practical 101, Combat,Defense, Malediction
Find him: exercise +chance in Fields, Forest chance+ at 8pm
Extracurricular: Wander in Garden
Activations:
Skip class in Fields to get super rare ugly photo
Forest, Garden and Field will give you the brewing potions scene, the sleeping under tree and lady bug.
SPECIAL ITEM: will give you the option after you punch him im the forest sleeping
Simon:
Classes: History of Magic, Alchemy, Potions, Malediction
Find him: skipping class, Forest practice magic, study at library
Extracurricular: Practice magic at Arena, +chance study at library.
Aspen:
Classes: Alchemy, Practical 101, CombatDefense, Healing, Potions
Find him: chance+ infirmary may give you medicine,
Extracurricular: Gardening club
Bunny Dude Ashton:
Classes: Practical 101, Combat, Defense, Astrology, Malediction
Find him: Garden watering flowers (at 2pm?), Field between classes, exercise Arena at 8pm
Extracurricular: Nap club at classroom,
Shy Guy Barnaby:
Classes: History of Magic, Magic 101, Combat, Defense, Healing, Malediction
Find him: +chance Library studying
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CLASSESS Quirks:
Alchemy: INT+++ by answering questions
Self-Defense: STR++
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PLACES Quirks:
Cooking: CHA+
Bathhouse: CHA+
Arena: STR+, INT+, or BAD+
Library: +chance workstudy random character encounter (Darcy, Simon, Claire), +chance study to meet random character (Hui, Darcy, Gwy, Barnaby, Areve),
Garden: CHA+
Fields: INT+, STR+, +chance of exercise random encounter (Titus, Billie, Barnaby)
Forest: INT+, STR+, or BAD+ and a random STAT++ adjustment
Delinquent Options: steal food, disorganize books library, Bully at arena, shrooms at forest
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ACTIONS:
Mushroom: random quirk with the possibility of DEATH.
Delinquent at Arena: STR 8 required, BAD +2.
Before meeting Catboy: Needed +6 STR to go down the hallway
Find Areve bruise in infirmary at 4pm she'll take a MORTAL BLOW for you in a battle.
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DORMS:
Sirius:
Regulus: Dragon boy?
Polaris: Siri
Bellatrix: Titus speciality> combat hexing, protection charms, defensive curses, and healing