CZN nightmare carnival optimisation

import pulp

# Base score
managerValues = {
    "beryl": 70,
    "sereniel": 23,
    "maribell": 48,
    "narja": 42,
    "tiphera": 54,
    "nine": 50,
    "tenebria": 60,
    "heidemarie": 40,
    "mika": 66,
    "rei": 75,
    "owen": 64,
    "luke": 51,
    "lucas": 32,
    "cassius": 39,
    "yuki": 40,
    "haru": 46,
    "fei": 59,
    "renoa": 54,
    "rossweisse": 90,
    "orlea": 62,
    "hilde": 48,
    "arabella": 100,
    "olga": 64
}

# Bonus
managerBonus = {
    ("sereniel", "narja"): 200/5,
    ("sereniel", "heidemarie"): 250/5,
    ("maribell", "nine"): 200/4,
    ("maribell", "beryl"): 100/4,
    ("narja", "sereniel"): 150/4,
    ("tiphera", "nine"): 200/7,
    ("nine", "tiphera"): 200/6,
    ("tenebria", "heidemarie"): 150/5,
    ("heidemarie", "tenebria"): 100/3,
    ("heidemarie", "tiphera"): 100/3,
    ("mika", "renoa"): 180/5,
    ("rei", "renoa"): 200/6,
    ("owen", "renoa"): 150/4,
    ("luke", "lucas"): 200/4,
    ("lucas", "luke"): 300/6,
    ("cassius", "heidemarie"): 100/3,
    ("cassius", "olga"): 100/3,
    ("yuki", "fei"): 200/5,
    ("yuki", "haru"): 100/5,
    ("haru", "rei"): 200/6,
    ("fei", "hilde"): 200/4,
    ("renoa", "rossweisse"): 80/4,
    ("renoa", "orlea"): 80/4,
    ("orlea", "fei"): 120/4,
    ("hilde", "arabella"): 200/7,
    ("hilde", "olga"): 200/7,
    ("olga", "hilde"): 200/6
}

SLOTS = 8

# Problem definition
prob = pulp.LpProblem("managers", pulp.LpMaximize)

# Add variables - adds a variable with a label, keyed against the "for x in selection" part
x = {m: prob.add_variable(f"x_{m}", cat="Binary") for m in managerValues}
y = {p: prob.add_variable(f"y_{p[0]}_{p[1]}", cat="Binary") for p in managerBonus}

# Add objective
prob += (pulp.lpSum(x[m]*managerValues[m] for m in managerValues)
         + pulp.lpSum(y[p]*managerBonus[p] for p in managerBonus))

# Add constraints
prob += pulp.lpSum(x.values()) <= SLOTS

for (i, j) in managerBonus:
    prob += y[(i, j)] <= x[i]
    prob += y[(i, j)] <= x[j]

# Solve
result = prob.solve(pulp.HiGHS(msg=False))

print("Status:", result.status.name)
print("Score: ", pulp.value(prob.objective))
print("Team:  ", [m for m in managerValues if x[m].value() > 0.5])