<h1>{{user.fullName}}</h1>
<h4>Username: {{user.userName}}</h4>

<ul>
    {% for i in userName.i_set.all %}
        <li> {{ i.taskName }} </li>
    {% endfor %}
</ul>

from django.db import models

class User(models.Model):
    userName = models.CharField(max_length=30)
    password = models.CharField(max_length=100)
    fullName = models.CharField(max_length=50)

    def _str_(self):
        return self.fullName

class Task(models.Model):
    userName = models.ForeignKey(User, on_delete=models.CASCADE)
    taskName = models.CharField(max_length=30)
    scores = models.CharField(max_length=100)  # score should default be set to x/10 until changed

    def _str_(self):
        return str(self.userName) + ' - ' + self.taskName