To get this you have to get through 9 levels for Fumi. Each level has up to 4 goals you must complete to reach the next level. The possible goals are, reaching a specific number of hearts, reaching a specific amount of money, giving specific gifts, taking the girls on dates, reaching a specific level in your hobbies/jobs.
The goals for Fumi are
Level 1 Adversary
700 Hearts
Level 19 Funny
Level 2 Nuisance
4,200 Hearts
Level 22 Wisdom
Level 3 Frenemy
26,250 Hearts
Level 24 Tech Savvy
25 Drink
Computer Whisperer (Computers)
Level 4 Acquaintance
164,063 Hearts
Level 26 Mysterious
25 Plus Toy
Level 5 Friendzoned
1,066,406 Hearts
Level 28 Smart
10 Shoes
10 Moonlight Stroll
Level 6 Awkward Besties
6,931,641 Hearts
10 Beach
10 Necklace
Futurist (Computers)
Level 7 Crush
45,055,664 Hearts
10 Sightseeing
5 Designer Bag
Level 32 Tech Savvy
Level 8 Sweetheart
139,968,000 Hearts
10 Movie Theater
2 New Car
Work at Space
Level 9 Girlfriend
1,903,601,807 Hearts
$1,000,000,000
Level 35 Smart
Starship Captain (Space)