Japanese company Hotlink Group has announced a $4 million investment in decentralized finance (DeFi) through its subsidiary, Nonagon Capital. The investment will utilize the synthetic stablecoin USDe, diverging from the more commonly used USDC. Hotlink's decision is driven by USDe's high-yield potential, achieved through a delta-neutral hedging strategy that balances long positions in assets such as Ethereum with equal short positions in derivatives.