First of all, please register your simple information. Pressing Enter will automatically calculate the life expectancy that best suits you using your BMI, current age, life expectancy, and whether or not you smoke. The remaining days, hours, minutes, and seconds are expressed in an easy-to-understand manner so that you can live a life that is conscious of the remaining time. The length of the candles also changes, so you can enjoy the change. There is also a function to notify you of the remaining time at your favorite time, so please set it and make it one of your daily vitality. You can be aware that your second is more precious than ever.